The MicroSol is great as mentioned. Also, if you end up with any air bubbles under the decal after it has dried, you can poke it with a pin and then apply more micro-sol. And, if the decal is going over rivets or other uneven surfaces, you can poke those areas with a pin and do the same. I usually apply the decal in the normal manner, let it dry, then apply the micro-sol and let it dry. Then look for airbubbles or places where the decal didn't pull down over rivets, etc. Poke those areas and apply more micro-sol. You can do this several times. But, as mentioned, do not mess with the decal when it is wet with micro-sol.